Hydrocarbon-gas burner for blast-furnaces and other purposes



(No Model.)

J. HOSKINS. HYDROGARBOK GAS BURNER FOR BLAST FURNACES AND OTHER PURPOSES. No. 267,431. Patented Nov 14, 1882.

Uivrrn Sra rns Parent rrron,

JOHN HOSKINS, OF CHICAGO, ILLINOIS.

HYDROCARBON-GAS BURNER FOR BLAST-FURNACES AND OTHER PURPOSES.

SPECIFICATION forming part of Letters Patent No. 267,431, dated November 14, 1882,

Application filed May 28, 1881. (No model.)

To all whom it may concern:

Be it known that I, JOHN HOSKINS, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Hydrocarbon-Gas Burners i'or Blast-Furnaces and other Purposes; and I hereby declare the following to be a full, clear, and exact description thereof, reference being had to the accompanying drawings, of which- Figure l is a perspective view of my apparatus as applied to an assay-furnace; Fig. 2, a central horizontal section of the gas generator and burner; and Fig. 3, a cross-section of the same, taken on the line 3 3, Fig. 2.

My invention relates to the class of appa ratus in which, for the purpose of producing or accelerating combustion in ablast or other furnace, a liquid hydrocarbon is forced into a close chamber, vaporized or gasified therein by means of heat, the vapors or gases in a stream under pressure caused to commingle with atmospheric air, the mixture ignited, and the resulting flame directed upon the point desired; and the essential feature of my invention lies in the peculiar construction of my combined gas generator and burner, all as hereinafter more fully set forth.

In the drawings, A is a reservoir, and B an air-pump attached thereto. No particular description of this device is here necessary, as it is well known in the art. The construction is such that the tube 12, connected to the bottom of the air-pump, passes up the interior of the reservoir nearly to the top of the same. The reservoir is filled with a liquid hydrocarbon (generally gasoline) to any point not above the top of the internal tube from the air-pump, and thus the operation of the said pump fills the reservoir above the liquid with compressed air.

0 is a pipe leading out of the reservoir near its base, and it is advisable to provide it with a suitable cut-oft valve close to the reservoir.

By pumping air into the top of the reservoir and opening the valve the liquid is forced rapward ends the V-shaped connection F, passing under a large tube, G, lying between the bars D D and projecting beyond the forward ends of the same, but falling short of the cross-piece E at its rear end, as shown, whereby an open space subsists between the two at this point. One end of the cross-piece E is threaded internally, as shown at a, to receive the end of the pipe (1, and from the inner end of this screwthread a passage, t, extends to a point opposite the center of the bar D, then turns at a right angle and passes centrally through the bar I) to a point opposite the center of the V- shaped connection F, then centrally through the said connection to a point opposite the center of the bar D, then centrally through that bar to a point opposite the center of the crosspiece E, then at a right angle along the said cross-piece to a point midway between the bars D and D. An extension, 8, projects backward from the cross-piece E, this extension being hollow and communicating with the passage t at its terminus. The passage through the extension 8 is continued on the opposite side of the passage 25 in the form of a conical aperture, 0', in line with the center of the tube G, said conical aperture forming the seat of a conical valve, q. The extension requires to be suitably packed around thevalve-rod,asshown atp.

From the foregoing description it will be seen that when the liquid hydrocarbon is forced by means of the airpump into the pipe (3 it enters the passage t and continues along the same through the bar D, thence through the V- shaped connection F, thence through the bar D, and finally along the cross-piece E again from the opposite direction, and out through the conical aperture 1'. In order to gasify it in the first instance, external heat is applied to the \l-shaped connection F, (which may be conveniently done by suspending a small cup of ignited gasoline beneath it,) and as soon as it becomes apparent from the sound that the hydrocarbon is issuing from the aperture rinthe form of a gas it should be ignited between the cross-piece and the inner end of the tube Gr. As soon as this is done it blows through the tube G in the form of an intensely-hot flame, and thenceforth continuously gasifies the hydrocarbon by heating the V-shaped connection F.

20 to the flow.

In the drawings I have shown my burner as applied to a small crucible-furnace, H. This, however, is only one of its many applications, as it is equally adapted, when constructed on a suitably large scale, for use with smeltingfurnaces, and for all analogous purposes.

I have referred to the connection F throughout the specification as V-shaped. The shape, however, is not material, and the same results would obviously follow if it were made curved or rectangular. It may also pass over as well as under the tube G.

My burner is not alone adapted for use with hydrocarbons impelled from the reservoir by pneumatic pressure, as represented in the drawings, as the same results may be obtained in other waysfor example, by means of hydro static pressure, the reservoir being supported at suflicient altitude to give the requisite force This latter method may even be found preferable to the air-pump when the device is employed on a large scale.

VVhatI claim as new, and desire to secure by Letters Patent, is-

The self-generating hyd rocarbon-gas burner herein described, comprising the tube G, parallel bars I) and D on opposite sides of said tube, and extending backward beyond the end thereof, connection P at theforward end of said bars, crossing the tube G, and cross-piece E at the rear of said bars; having the tubular projection s, conical aperture r, and valve q, said bars, cross-piece, and connection being provided with the continuous passage 1, beginning at one end of the cross-piece E and terminat- 5 ing at the valve q, substantially as described.

JOHN HOSKINS. I n presence of WM. H. DYRENFORTH, J'As. A. BURKE. 

